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Heliup offers lightweight rooftop PV modules with waterproofing membrane

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Heliup offers lightweight rooftop PV modules with waterproofing membrane

French lightweight PV module manufacturer Heliup has partnered with Elevate, a Holcim Group brand specializing in waterproofing and insulation, to launch Solar Light TPO, an offer combining Heliup’s lightweight Stykon PV modules with Holcim’s UltraPly TPO waterproofing membrane, available in thicknesses ranging from 1.5 mm to 2 mm.

Solar Light TPO weighs 7 kg/m², compared with 15 kg/m² to 20 kg/m² for conventional systems, including the waterproofing membrane. It uses a mounting method that requires no roof penetrations, additional rails, or ballast.

“This makes it possible to install PV systems on flat roofs that were previously difficult to equip, particularly on commercial, industrial and logistics buildings, as well as public facilities,” Jean-Luc Roudaut, director of new photovoltaic market development at Holcim, told pv magazine France.

The system can also accommodate different roof designs, including pitched roofs, sawtooth roofs with slopes of up to 100%, and curved surfaces. It is suitable for both new construction and roof waterproofing renovations.

The UltraPly TPO membrane is available in three thicknesses: 1.5 mm, 1.8 mm and 2 mm. The thickest option is particularly suitable for roofs requiring regular maintenance and servicing.

“Our profiles are highly complementary, allowing us to leverage multiple routes to market based on specific needs: a network of waterproofing contractors and project managers on Holcim’s side, and project owners, solar industry players and developers on Heliup’s side,” said Roudaut.

Solar Light TPO has obtained an Enquête de Technique Nouvelle (ETN), a French technical assessment for innovative construction systems, and a Broof (t3) fire classification.


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